Mode of burning brick



MULLEN & HALL.

BrickKiln.

No. 19,309. Patented Feb. 9. 1859.

o D D H U u Fw m j' TE STATES ATENT OFFTCF.

MODE OF BURNING BRICK.

Specicaton of Letters Patent No.

To all whom it may concern:

Be it known that we, A. J. MULLEN and R. HALL of Greensboro, in the county of Green and State of Alabama, have invented a new and useful Improvement in Brick- Kilns; and we do hereby declare that the following is a full, clear, and eXact description of the construction and operation of the same, reference being had to the annexed drawing, forming part of this specification, in which- Figure l is a vertical longitudinal section of the kiln, and Fig. 2 is a vertical transverse section.

Similar characters of reference in the several figures denote the same part.

The object of our invention is to construct a perpetual brick kiln, the brick being thrown in without regard to order, and drawn from the bottom, the details of construction and operation being as follows.

In the drawing A is the body of the kiln having an inclined bottom c leading to a pit P.

F F are the fire chambers, E E are the ash pits, and G G are grates. These are each side of the body of the kiln, and chambers F F communicate with the kiln by openings c c, as shown in Fig. 2 and in the horizontal section marked X.

The pit P is covered by a hinged door D for drawing the brick.

This kiln is so constructed that all below m is under ground. A scaold is erected 19,309, dated February 9", 1858i.

around the upper portion of the body of the kiln and the unburned brick is thrown in until the body of the kiln and pit are filled, as indicated in Fig. 1. The brick being allowed to rest as they fall.

Either wood or coal may be used to tire the furnaces, and if desired a fan may be employed to facilitate the draft.

Vhen suiiicient time has elapsed the door D is lifted and the bricks drawn from the pit, fresh bricks being thrown in at t-he top during this operation, to supply the places of those which pass down the inclined plane and settle in the pitA P. In this manner the operation will be kept up and the kiln rendered perpetual, fresh brick being supplied at top as fast as the burned brick are removed from the pit at bottom.

What we claim as new and desire to secure by Letters Pattent, is-

The construction of a brick kiln with an inclined bottom a leading to the drawing pit, when used in combination with the irregular setting of the brick in the kiln as hereinbefore set forth.

In testimony whereof, we have hereunto signed our names before two subscribing witnesses.

A. J. MULLEN. ROBT. HALL.

Witnesses C. JONES, ALBERT SMITH. 

